how to test the switch. On the back of the swith there are four wires. You are only going to be interested in two of them. First of all, were going to test to see how much voltage is actually in the wire before you switch it on. By testing the R/W wire on it with the lights on low you should have some type of voltage other then 0 going into it. Now turn your switch on and then check the L/Y wire to see if that same voltage you just checked is coming out the switch. You could always make a bypass and jump the R/W wire and the L/Y wire which would completely bypass the switch at which time your fogs should come on. Just make a jumper wire and do that...if it works then your switch is toast in my opinion. Anyway, if you wondering what the other two wires are (W/L) & (LG/B) they are there to power the little led that is in the switch that makes it glow red, don't mess with those wires to test. I hope this helps..... best of luck and I'm not responsible for anything frying or melting or anything.
